diff --git a/source/tools/detect/io/iofsstat/iostatClass.py b/source/tools/detect/io/iofsstat/iostatClass.py
index 9f16ebe8de4fdf5cd6065d44baaf6c96e8f04ab2..d288f828fb868abb4e60b36a9e06796dad34a410 100755
--- a/source/tools/detect/io/iofsstat/iostatClass.py
+++ b/source/tools/detect/io/iofsstat/iostatClass.py
@@ -121,6 +121,9 @@ class iostatClass(diskstatClass):
             oneIO = entry.split()
             matchObj = re.match(
                 r'(.*) \[([^\[\]]*)\] (.*) \[([^\[\]]*)\]\n', entry)
+            # Fix the NoneType error when the match fails
+            if not matchObj:
+                continue
             comm = matchObj.group(4)
             pid = matchObj.group(1).rsplit('-', 1)[1].strip()
             if self.pid is not None and int(pid) != self.pid: